Mathey Dearman MSA Saddle Machine - Manual (Page 5)

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3.3 Secure Spacer to the Saddle by placing 1/4-20 X 5/8” machine screw through the hole in the top side of the
saddle and threading it into the Spacer. The machine screw does not have to be tightened with a wrench as the
purpose of the nut is to secure the spacer bolt to the saddle.
The correct Spacer length (between outside diameter of pipe and inside diameter of saddle) is 1-1/16” (27mm).
Figure 1: Spacer Configuration for 2”, & 3” pipe
Table 1 – Spacer Identification
4.0 Installation of MSA Machine on Pipe
4.1 Place the MSA Machine Saddle squarely on the pipe, as close as possible to the cut line. The front and
back spacers should make full contact on the pipe.
4.2 Place the Eye of the Boomer Assembly (Figure 2 item 2) over 1/4-20 x ¼” Socket Head Cap Screw
(Figure 4 item 9) located on the Saddle (Figure 4 Item 1).
4.3 Tighten the Thumb Screw (Figure 2 Item 3) of the Boomer Assembly (Figure 2) to secure the
machine to the pipe.
Bore (inside diameter) of MSA
Machine Saddle 4-1/2” (114mm)
Subtract actual OD of pipe 2-3/8" (60mm)
Difference 2-1/8” (54mm)
Divide Difference by two (2) 2-1/8” ÷ 2 = 1-1/16” (27mm
Caution:
Improper tensioning of the boomer assembly or failure to latch the boomer
assembly may result in injury.
ITEM # PART DESCRIPTION PART # QUANTITY REQUIRED
1 Spacer for 2” pipe (51 mm) 03-0109-002 2
2 Spacer for 3” pipe (73 mm) 03-0109-004
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3 Machine Screw, 1/4-20NC X 5/8” 14-14C0-058 1
4 MSA Spacer Kit 03-0MSA-KIT 1